Descrption:
The MS8527 SERIES designed for the corded/cordless phone applications. It built-in to control the operation of the entire system.
There are several I/O interfaces designed for handshaking with the other peripheral devices and support two serial interfaces are used for the specified serial data transmission and up to 32-degrees contrast levels are supported to adjust the LCD contrast with complete solution for the applications of the adjunct boxes, feature phones, and other communication systems.
Specification:
■ 8-Bit micro-controller built in.
■ Operating voltage range: 2.4~5.5V
■ Only single crystal (32768Hz)
■ Programmable MCU clock rate
■ High-Speed :
■ 8.388MHz, 4.194MHz, 2.097MHz,
■ 1.049MHz, 524KHz and 262KHz.
■ Low speed : 32768Hz.
■ MCU Power saving mode:
■ Clock rate = 524KHz, 262KHz and 32768Hz.
■ 128K bytes ROM for MS8527P & MS85272.
■ 64K bytes ROM for MS85271 only.
■ 4K bytes RAM
■ Power Management
■ Standby mode
■ Stop mode
■ Low voltage detector / Comparator
■ Programmable low voltage reset (LVR)
■ Advance power-on reset (mask option)
■ A watchdog timer against deadlock.
■ Seven-Level Priority-based interrupts.
■ Fourteen 8-Bit general-purpose timers
■ Timer A
■ Timer B
■ Timer C (Shared with watchdog timer)
■ MCC Timer (Shared with MCCIN function)
■ Two GT timers
■ Eight Speech Timers
■ Pseudo FIFO for SSI, UART & SMI2
■ MCCIN interface/MCC Timer
■ Fast Auto-Access Data Channel (FAADC)
■ Programmable Fast Block Move Function
■ Input port and I/O ports interface.
■ I/O port A: 4 non-open-drain I/O ports with Schmitt & interrupt
■ Open drain I/O port:
■ 2 pins with heavy sinking capability
■ Shared with SMI2 / UARTfunctions
■ Multiple-function I/O ports:
■ UART controller
■ Universal synchronous serial Interface (SSI)
■ Memory Interface:
Serial Memory Interface (SMI2).
■ Built-in LCD driver
■ Four resolutions:
■ 80SEG x 16COM, 64SEG x 32COM,
■ 80SEG x 8COM or 80SEG x 4COM
■ Four programmable duties: 1/32,1/16, 1/8 or 1/4
■ Three programmable biases: 1/6,1/5 or 1/4
■ Maximum 80/64 segment output pins
■ Maximum 16/32 common output pins
■ 32 level brightness adjustment
■ Voltage booster (2*DVDD)
■ Current meter for steady display quality
■ Adjustable driving buffers for large LCD panel
■ Ringer/Music tone generator
■ Auto Key scan function (Up to 16x4)
■ IrDA Communication Interface
■ 16-Bit CRC-CCITT Calculation function
■ 8-Channel Speech Melody (Eight Speech Timers) for MS8527P and MS85272. (MS85271 not Included).
Package:
■ 128 Pins QFP packaged.